Study Reveals Crops Influence Beneficial Microbe Selection Over Soil Type
Crops predictably select growth boosting microbes regardless of soil type, study finds

Image: Phys.org
A recent study indicates that crop species, rather than soil type, primarily dictate the beneficial functions of root-associated microbes. Conducted in the UK, the research highlights how plants actively select microbes for nutrient acquisition and stress tolerance, with implications for sustainable agriculture.
- 01The study involved six arable crops grown in soil from nine UK locations.
- 02Different crops attract specific microbes based on their functional benefits, such as drought resistance or nutrient acquisition.
- 03The research utilized the UK Crop Microbiome Cryobank, analyzing over 24,000 bacterial cultures.
- 04Sugar beet and oilseed rape attracted microbes aiding in drought survival, while barley selected microbes for zinc availability.
- 05The findings suggest a need for breeding crops that enhance selection of beneficial native soil microbes.
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A study published in ISME Communications reveals that crop species, rather than soil type, are the primary determinants of beneficial microbial functions in root-associated bacteria. Conducted by researchers from institutions including Rothamsted Research and The John Innes Center, the study utilized soil samples from nine locations in the UK to cultivate six key arable crops: wheat, barley, oats, fava beans, oilseed rape, and sugar beet. The research found that while the local soil environment influences the types of bacteria present, it is the crop species that selects microbes based on their beneficial functions, such as aiding in nutrient acquisition or enhancing stress tolerance. For instance, sugar beet and oilseed rape attracted microbes that help them survive dry conditions, while barley selected microbes that assist in unlocking zinc from the soil. The study underscores the importance of understanding plant-microbe interactions for developing microbial inoculants and breeding strategies aimed at sustainable agriculture.
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The findings can influence agricultural practices by promoting the development of crops that better utilize beneficial native soil microbes.
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